Al-Kāfi - Volume 8 > Hadith
Hadith #131

وَ بِهَذَا الْإِسْنَادِ أَنَّ النَّبِيَّ (صلى الله عليه وآله) قَالَ ارْحَمُوا عَزِيزاً ذَلَّ وَ غَنِيّاً افْتَقَرَ وَ عَالِماً ضَاعَ فِي زَمَانِ جُهَّالٍ.

131. And by this chain, who has narrated the following: Imam (asws) said that: ‘The Prophet (saww) said: ‘Be merciful towards a mighty one who has been humbled, and a rich one who has become poor, and a scholar who is wasted in the era of the ignorant ones.